MATH
141 - PRECALCULUS
Email me (I
encourage corrections!). HOME
GOING ONLINE!
YOUTUBE
You can access my YouTube channel here; I plan to play these during
class time using Zoom - and I can take questions:
https://www.youtube.com/channel/UCpftfxKG-zvG3SaXeCiivHA
Go to Playlists.
ZOOM
Please do not contact me through Zoom outside of class time without
an appointment - I may be recording videos!
Please Mute yourself unless you wish to speak. Otherwise, the slightest sound could shift
the camera to you.
ON A COMPUTER
Click on “JOIN A MEETING” in the upper right corner.
Enter the Meeting ID #: 8574161568
ON A PHONE
You have to install the Zoom app on your phone.
You have to set up an account.
Enter Meeting ID 8574161568
Join Meeting
TO “RAISE YOUR HAND”
Comment or put a
“?” in the Chat box. I will see your
name.
This will help
organize the voices.
See you during class time!
To make a Zoom appointment with me in office hours, please email me
first!
Good luck, everyone!
Ken
ALEKS Extra Credit
(This review can especially help with the very
difficult Quiz 1A.)
YOU
CAN PAY FOR AN ALEKS LICENSE. http://www.aleks.com
I
CAN SEND YOU A CLASS CODE. Email me
GETTING
STARTED:
ALEKS: Getting Started
(.pdf)
Orientation
Quick Tips (.pdf)
Orientation PowerPoint
(.ppt)
IF
YOU LIKE ALEKS, BUT YOU FIND THE PACE IN 141 TO BE TOO FAST, TRY THE MATH 15s!
These are great, 1-unit, online, ALEKS-based,
self-paced refreshers that have helped many students. 15E is trig; 15F is
college algebra. A No-Pass grade does not affect GPA, though it does appear on
your transcript; it can be a problem if you are on academic probation. 15E
includes 15D (geometry). Instead of enrolling in both 15E and 15F, contact the
instructor, and they may be able to make arrangements with you to just enroll
in one Precalculus class, though you may be facing material you have not seen
yet.
These are offered at different times throughout the
semester. You could take more than one in one semester! Get a good foundation
for your classes!
http://classschedule.sdccd.edu/
Class Resources
VIDEOS; CLASS &
HOMEWORK SCHEDULE (tentative; updated frequently; check regularly)
TEST-TAKING TIPS; REDUCING TEST ANXIETY: Test.html Test.pdf
(pdf file)
FREE ONLINE BOOK (OPENSTAX PRECALCULUS): https://openstax.org/details/precalculus
FREE ONLINE BOOK (PRECALCULUS DEMYSTIFIED): http://libraryproxy.sdmesa.edu/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=nlebk&AN=138326&site=ehost-live
FREE MATH AND SCIENCE WORKSHOPS! http://www.sdmesa.edu/STEMworkshops
REGISTER TO VOTE: If you are not registered to vote, please register online
today: http://www.tinyurl.com/reg2voteonline Please
choose the vote-by-mail option.
Syllabus (Spring 2020): Syllabus
Instructor Schedule; Office Hours (Spring 2020): Poster.pdf
Printing Suggestions for Typed Files
I recommend two-page-to-a-side and/or double-sided printing to
save paper. Color printing is nice, but B&W printing is cheaper.
These
are pdf files. You can get the free Adobe Reader at http://www.adobe.com. Get a version that is
compatible with your system!
Class Notes
Many
students benefit from printing the notes for a lecture beforehand, reviewing
them, and commenting on them in class.
You
may want to take personalized sketch notes in class.
Creative Commons License: For
attribution, simply mention my name and/or web URL somewhere if you are using
huge chunks of the notes. I simply want due credit.
Notes for Quiz 1A and
Quiz 1B (last revised 1/27/13)
Chapter
0: Preliminary Topics: (last revised 1/27/13)
NEW!! QUADRATIC FORMULA SONG! (SECTION 0.11): https://www.youtube.com/watch?v=IfpkQVyqK7c
Chapter 1: Functions
CORRECTION to 1.2.3! In the middle of page 1.2.3, -9 (instead
of 9) is not in the domain of f.
MATH DANCES FOR GRAPHING!
http://9gag.com/gag/4419992/do-the-math-dance
(correction: x^2 + y^2 = r^2)
http://www.seyedrezabazyar.com/fa/math-dances/
https://www.reddit.com/r/geek/comments/444shr/dancing_mathematician/
(see the dance!)
(The
following notes will be revised for later semesters. Section and page
references may be inconsistent with the new Chapters 0 and 1. Please Email me with comments/suggestions.)
Chapter
2: Polynomial and Rational Functions
Chapter
3: Exponential and Logarithmic Functions
CARD SHARKS AND (NEARLY) EXPONENTIAL GROWTH: https://www.youtube.com/watch?v=6z8IK4dj_uY
https://www.youtube.com/watch?v=vCzvH9nLZYA
WATCH THE SIMPSONS!
http://www.youtube.com/watch?v=bZivCw3bB6w
Chapter
4: Trigonometry
Basic
Trig IDs (handout in class): Basic Trig IDs (revised from 5.1 notes: 3/8/18)
VISUALIZING THE SIX BASIC TRIG FUNCTIONS:
http://www.kkuniyuk.com/TrigSixParts.pdf
(revised 2/11/06)
Chapter
5: Analytic Trigonometry
More
Trig IDs (handout in class): Handout.
Chapter
6: Additional Topics in Trigonometry
KHAN ACADEMY ON EULER FORMULA. (Do you have emotion?)
https://www.youtube.com/watch?v=mgNtPOgFje0
Chapter
7: Systems of Equations and Inequalities
Chapter
8: Matrices and Determinants
Chapter
9: Discrete Math
SECTION 9.4: KHAN ACADEMY ON INDUCTION: https://www.khanacademy.org/math/algebra-home/alg-series-and-induction/alg-induction/v/proof-by-induction
SECTION 9.5: VIDEOS AND PASCAL’S TRIANGLE MAGIC: CLICK ON Notes for Final
Chapter
10: Conics and Polar Coordinates [as time permits] (Ch.10 is mostly
handwritten.)
ANIMATION ON CONICS
https://www.youtube.com/watch?v=HO2zAU3Eppo
Corrections: (0:48-1:07) The
double-nappe cone (or simply cone here should not be thought of as finite, so
there are no bases nd there is no base perimeter. The term directrix
is used elsewhere, especially when describing parabolas.
In
previous semesters, the final was cumulative. For your information, here was
the outline provided: Math141OldFinalOutline.pdf
Homework Assignments
Printed
hard copies of these will be provided in class.
GO THROUGH MY HOME PAGE (OR SEE ME) IF YOU'D LIKE TO KEEP YOUR
NAME "PRIVATE" ON YOUR HOMEWORK.
#1-A:
HW Answers (Ch.0 in my notes) (9 points) (revised 1/19/16)
#1-B:
HW Answers (Ch.1) (6 points) (revised 9/3/15)
#2:
HW Answers (Chs.2 and 3) (15 points) (revised 9/16/16)
#3:
HW Answers (Ch.4) (15 points) (revised 9/29/18 –
minor edits)
#4:
HW Answers (Chs.5 and 6) (15 points) (revised 4/1/17 –
minor edits)
#5:
HW Answers (Chs.7-10) (25 points). (revised 5/1/18 – minor edit)
PolarGraphPaper
(Ch.10; created using Mathematica
with Microsoft Word)
Old Exams and Solutions (Fall 2019)
Disclaimer: Your exams might
look very different from these! Lengths of exam times may be different.
If
your printer is broken, you can ask me for printed hard copies in my office
hours.
Quiz 1A Solutions (1 hour and
15 minutes)
Chapter
0: Preliminary Topics
Quiz 1B Solutions (50 minutes)
Chapter
1: Functions
Midterm #2 Solutions (50 minutes
for Part 1; 1 hour and 20 minutes for Part 2)
Chapter
2: Polynomial and Rational Functions
Chapter
3: Exponential and Logarithmic Functions
Midterm #3 Solutions (40 minutes
for Part 1; 1 hour and 30 minutes for Part 2)
Chapter
4: Trigonometry
Midterm #4 Solutions (40 minutes
for Part 1; 1 hour and 30 minutes for Part 2)
Chapter
5: Analytic Trigonometry
Chapter
6: Additional Topics in Trigonometry
Final Solutions (2 hours
and 20 minutes). Material covered in
later terms may differ.
Chapter
7: Systems of Equations [and Inequalities] (Sections 7.5, 7.6 not on Final.)
Chapter
8: Matrices and Determinants
(Sections 8.3, 8.5 not on Final.)
Chapter
9: Discrete Math
Chapter
10: Conics and Polar Coordinates
Exams
and solutions will be posted about a week after you take them.
Current Exams and Solutions (Spring 2020)
Quiz 1A Solutions (1 hour and
15 minutes)
Chapter
0: Preliminary Topics
Quiz 1B Solutions (50 minutes)
Chapter
1: Functions
Exams
and solutions will be posted about a week after you take them.